scd 777es sacd sony mod worth it?

hey. there is a gent (think he's a memeber here) who seems like a straight-up guy over the phone. he does mods for the 777es which, he says, really opens up the sound stage and mellows the highs. his name's richard and his website is http://www.audiomod.com/

just wondering if any people have done this mod and/or have thoughts about doing it. it's pretty cheap. i like the 777es as is but who knows what i'm missing.
equipment used with it:
arc vt100mkII
arc ref1 line
space-tech phono
oracle delphi mkI tt
acoustat mod III speakers
vandersteen 2wq sub

as always, thanks in advance.